Add Nether and for Eggwars pls traps to alert u

Please add the nether for survival and creativ worlds, and for eggwars speciffialy pls traps to alert one if an enemy player (from another team) comes into your base. My idea for the price would be 4 Emeralds, because it isn't a trsh item, i mean u could safe yourself like this. I would love the game even more if even one of those things would be added. Thx. :D